The TP-Link TL-SM321A is a high-performance network transceiver module designed for high-speed data transmission. It utilizes fiber optic technology to achieve a maximum data transfer rate of 1250 Mbit/s, making it suitable for applications requiring rapid data handling. The module features an SFP interface for compatibility with standard Small Form-factor Pluggable slots in various network devices. It is equipped with an LC (UPC) connector and supports single-mode fiber (9/125 µm). The TL-SM321A operates on the BX transmission standard, enabling efficient, bidirectional communication over a single fiber strand by using different wavelengths for each direction. This enhances network performance by reducing latency and increasing data throughput. Designed for seamless integration into existing fiber optic networks, this module expands network reach and efficiency without major infrastructure changes. Its compact form factor allows easy installation in routers, switches, and other compatible network equipment. TP-LINKs TL-SM321A adopts the latest standard 1000Base-BX, transmission over a single strand of fibre, with one different wavelength going in each direction. You can extend the network distance up to 10Km with TP-LINKs Routers, Switches, Media.